Essential oils high in Phenols are some of the most highly anti-infectious oils used sparingly in aromatherapy. It is suggested to only use these oils short term (no more than 2 weeks at a time), for acute situations. Because these are hot oils, please check the maximum dermal dilution for each oil to ensure they are diluted properly. They are excellent choices for cleaning the home and cold/flu blends. Use low dilution as these are skin irritants. As always, see individual oil profiles for specific uses.